As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED DISPLAY COOL CAUTION MESSAGE THAT WOULD NOT EXTINGUISH IN FLIGHT. CREW RETURNED TO FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AVIONICS COOLING FILTERS AND LOW FLOW SENSOR AND PERFORMED CHECKS IAW AMM. NO DEFECTS NOTED. ACFT RELEASED FOR SERVICE.